Residents of Russia's Kamchatka Peninsula were warned of potential tsunami waves as a series of earthquakes, including a 7.4 magnitude one, struck off the Russian coast, according to the U.S. Geological Survey. A Tsunami threat was issued off the Kamchatka coast, according to the U.S. Tsunami Warning System.

Several earthquakes hit Russia's Kamchatka Peninsula. The largest quake measured magnitude 7.4. A tsunami warning was issued by the Pacific Tsunami Warning Centre. The US National Tsunami Centre also issued a warning for Hawaii.

The Pacific Tsunami Warning Center has issued a threat forecast for Russia's Kamchatka Peninsula after two quakes - the larger with a magnitude of 7.4 - struck in the sea nearby on Sunday.